General description The Viral In-Line Outlet Filter is designed for use with Resmed and Dreamstation CPAP/BiPAP machines. This filter cleans the air exiting the machine, ensuring that users receive very clean air in conjunction with the machine's built-in inlet filters. Each filter is individually sterilized and sealed for optimal hygiene. Technical specifications Outer diameter of the male connector end: 15 mm Inner diameter of the connector end: 22 mm Efficiency: 99.99+% Material: Plastic Color: Transparent Package Contents: 12 x Filters Measurement allowed error: +/- 1-3 cm Installation The filter is simple to install and replace, attaching between the air outlet of the machine and the CPAP hose. Usage This filter is suitable for machines with 22 mm tubing, enhancing the air quality delivered to the user. Other information Latex-free. Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.